now more from kabul, afghanistan. >> hi, gregg. the newly appointed defense secretary arrived here in kabul a short time ago. he's had a busy time already, held brief talks with u.s. military leaders at the airport, including general david petraeus. he then headed straight into a meeting with afghan president karzai. during those talks, he discussed the transition of some nato-controlled areas to afghan control later this month. and of course, they discussed the draw down of u.s. troops over the next year. panetta said he hoped to drive the taliban to the peace talks during that period. the defense secretary was also upbeat about prospects of defeating al-qaeda if they can capture or kill the remaining leaders. >> i would say somewhere around ten to 20 key leaders that between pakistan, yemen, somalia and north africa, those are -- if we can go after them, i think we really can strategically defeat al-qaeda. >> he also said the targeting of leaders such as new al-qaeda chief continues to limit their ability to conduct attacks. he s